ASTM B23-00

Standard Specification for White Metal Bearing Alloys (Known Commercially as "Babbitt Metal")

SCOPE
1.1 This specification covers eight typical white metal bearing alloys, in bar or ingot form, known commercially as "babbitt metal." The alloys are specified, covering the range commercially used, and are designated by the alloy numbers shown in Table 1.
1.2 The values stated in inch-pound units are to be considered as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Oct-2000
• ICS: 77.120.01 - Non-ferrous metals in general
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.02 - Refined Lead, Tin, Antimony, and Their Alloys

Relations

• Replaced By: ASTM B23-00(2005) - Standard Specification for White Metal Bearing Alloys (Known Commercially as "Babbitt Metal")
• Effective Date: 01-Nov-2005
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 10-Oct-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B 23 – 00
Standard Specification for
White Metal Bearing Alloys
(Known Commercially as “Babbitt Metal”)
ThisstandardisissuedunderthefixeddesignationB 23;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Materials and Manufacture
1.1 This specification covers eight typical white metal 4.1 The bars or ingots shall be made in accordance with
bearing alloys, in bar or ingot form, known commercially as such practice as to obtain the chemical composition, weight,
“babbitt metal.” The alloys are specified, covering the range and dimensions as prescribed in this specification.
commercially used, and are designated by the alloy numbers 4.2 The bars or ingots shall be as uniform in quality as
shown in Table 1. practicable.
1.2 The values stated in inch-pound units are to be consid-
5. Chemical Composition
ered as the standard.
5.1 Thealloyscoveredbythisspecificationshallconformto
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the the requirements for chemical composition prescribed in Table
1.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 5.2 By agreement between manufacturer and purchaser,
analysis may be required and limits established for elements
bility of regulatory limitations prior to use.
not specified in Table 1.
2. Referenced Documents
6. Dimensions and Weights
2.1 ASTM Standards:
E 29 Practice for Using Significant Digits in Test Data to 6.1 The babbitt shall be furnished in bars of a convenient
weightandsizeforhandling.Unlessotherwiseagreedupon,no
Determine Conformance with Specifications
unnotched bar shall exceed 10 lb (4.5 kg) in weight, nor
E 57 Methods for Chemical Analysis of White Metal Bear-
ing Alloys notched bar exceed 15 lb (6.8 kg).
6.2 By mutual agreement, babbitt may be furnished in small
3. Ordering Information
round bars about 3.5 in. (90 mm) in diameter.
3.1 Orders for materials under this specification shall in-
7. Sampling
clude the following information:
3.1.1 Name of material (white metal bearing alloy), 7.1 Three bars shall be selected to represent a shipment of
less than 1000 lb (450 kg), five bars to represent a shipment of
3.1.2 Form and nominal weight of individual bars,
3.1.3 Quantity, 1000 lb to 10 000 lb (4500 kg) inclusive, and ten bars to
represent a shipment of over 10 000 lb to one carload.
3.1.4 Alloy number,
3.1.5 Inspection required (Section 9), 7.2 Saw cuts shall be made at points in the bars as indicated
in Fig. 1. No lubricants shall be used for sawing. The sawings
3.1.6 Certification required (Section 10),
3.1.7 Marking required (Section 11), and shallbecarefullytreatedwithamagnettoremoveanyparticles
of steel introduced in taking the sample.
3.1.8 ASTM designation and year of issue.
7.3 When babbitt is furnished in bars under 5 lb (2.3 kg) in
weight, three bars shall be considered the equivalent of one bar
This specification is under the jurisdiction of ASTM Committee B02 on
(6.1) for sampling purposes. These may be remelted in a clean
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
utensil at a temperature slightly above the liquidus point of the
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys.
alloy, mixed thoroughly, poured into a cold mold forming a
Current edition approved Oct. 10, 2000. Published November 2000. Originally
published as B 23 – 26. Last previous edition B 23 – 94.
convenient size bar, and then handled in accordance with 6.2.
Annual Book of ASTM Standards, Vol 14.02.
Discontinued—see 1986 Annual Book of ASTM Standards, Vol 03.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B23–00
A
TABLE 1 Chemical Composition —wt% (range or maximum)
Alloy Number
Tin Base Lead Base
Chemical
Composition, %
123 11 78 13 15
UNS—L13910 UNS—L13890 UNS—L13840 UNS—L13870 UNS—L53585 UNS—L53565 UNS—L53346 UNS—L53620
B B B B
Tin remainder remainder remainder remainder 9.3–10.7 4.5–5.5 5.5–6.5 0.8–1.2
Antimony 4.0–5.0 7.0–8.0 7.5–8.5 6.0–7.5 14.0–16.0 14.0–16.0 9.5–10.5 14.5–17.5
B B B B
Lead 0.35 0.35 0.35 0.50 remainder remainder remainder remainder
Copper 4.0–5.0 3.0–4.0 7.5–8.5 5.0–6.5 0.50 0.50 0.50 0.6
Iron 0.08 0.08 0.08 0.08 0.10 0.10 0.10 0.10
Arsenic 0.10 0.10 0.10 0.10 0.30–0.60 0.30–0.60 0.25 0.8–1.4
Bismuth 0.08 0.08 0.08 0.08 0.10 0.10 0.10 0.10
Zinc 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
Aluminum 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
Cadmium 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
Total named 99.80 99.80 99.80 99.80
elements,
min
A
Alloy Number 9 was discontinued in 1946 and numbers 4, 5, 6, 10, 11, 12, 16, and 19 were discontinued in 1959. A new number 11, similar to SAE Grade 11, was added
in 1966.
B
To be determined by difference.
NOTE 1—With notched bars the saw cuts shall be distributed along the bar in a similar manner, avoiding if possible, saw cuts directly through a notch.
FIG. 1 Method of Sampling Unnotched Bar
7.4 Sawings,thoroughlymixed,shallbeseparatedintothree 9. Inspection
equal portions, each of which shall be placed in a sealed
9.1 Inspection of the material shall be made as agreed upon
package, one for the manufacturer, one for the purchaser, and
by the manufacturer and the purchaser as part of the purchase
one for an umpire, if necessary. Each portion should exceed
contract.
0.74 oz (21 g) in weight.
7.5 When bars, by agreement, exceed 15 lb (6.8 kg) in
10. Rejection and Rehearing
weight, the number of sample bars taken and the sampling
10.1 Material that fails to conform to the requirements of
procedureshallbebyagreementbetweenthemanufacturerand
thisspecificationmayberejected.Rejectionsho
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